全胃肠内营养制剂的成分中，不包括（） A.葡萄糖 B.脂肪乳剂 C.电解质、维生素

天车电气线路主接触器不能接通的原因有哪些？

Part 1V  Writing (45 marks)Section A (10 marks)

Directions: Read the following passage. Fill in the numbered blanks by using the

information from the passage.

Write NO MORE THAN THREE WORDS for each answer.

An apprenticeship is a form of on-the-job training that combines workplace experience and classroom learning. It can last anywhere from one to six years, but four years is typical for most. An apprentice spends the majority of the time in a workplace environment learning the practical skills of a career from a journeyman--someone who has done the job for many years. The rest of the apprentice's time is spent in a classroom environment learning the theoretical skills the career requires. Being an apprentice is a full-time undertaking.

One of the advantages of apprenticeship is that it does not cost apprentices anything. The companies that hire them pay for school. What's more, it offers apprentices an "earn while you learn" opportunity. They usually start out at half the pay of a journeyman, and the pay increases gradually as they move further along in the job and studies. Near the end of the apprenticeship, their wages are usually 90 percent of what a journeyman would receive. Apprenticeship also pays off for employers. It can offer employers a pool of well-trained workers to draw from.

Despite the advantages, apprentices are usually required to work during the day and attend classes at night, which leaves little time for anything else. Sometimes, they might be laid off(下岗) if business for the employers is slow.

Once they have completed the apprenticeship and become journeymen, they receive a nationally recognized and portable certification and their pay also increases again. Some journeymen continue employment with the companies they apprenticed with; others go onto different companies or become self-employed contractors.

4个人玩游戏，在每张纸上写出1～9中的一个数字，然后叠起来，每人从中抽取2张，然后报出两数的关系，由此猜出剩下没有人拿的那个数字是多少。
已知：Ⅰ．A说他手里的两数相加为10。
Ⅱ．B说他手里的两数相减为1。
Ⅲ．C说他手里的两数之积为24。
Ⅳ．D说他手里的两数之商为3。
由此他们4个都猜出了剩下没有人拿的那个数字，这个数字是：

A．5
B．6
C．7
D．8

架空光缆线路与铁路平行时最小垂直净距是（）米。

对氢冷发电机内的氢气和供发电机充氢、补氢用的新鲜氢气的湿度应进行定时测量；对300MW及以上的氢冷发电机可采用连续监测方式（）